宽温度全固态Ti3 C2 Tx 量子点/L-Ti3 C2 Tx 纤维超级电容器具有高容量和出色的灵活性
Juan He1,2,3, Fuquan Ma1,2,3, Wenpu Xu1,2,3
1Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University), Ministry of Education, Xi'an, 710062, P. R. China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|December 13, 2023
概括
这项研究开发了用于超级电容器的柔性Ti3C2Tx量子点纤维电极. 这些电极在广泛的温度范围内表现出高容量和稳定性,为先进的能量存储提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 纳米技术 纳米技术
背景情况:
- 由于其高导电性和表面积,MXenes,特别是Ti3C2Tx,是用于储能的有希望的二维材料.
- 开发灵活和稳定的电极对于可穿戴和便携式电子设备至关重要.
研究的目的:
- 为了准备Ti3C2Tx量子点 (QD) /L-Ti3C2Tx光纤电极 (Q3M7),提高容量和灵活性.
- 使用这些电极和一种新的水凝电解质,组装一个高温,全固态纤维超级电容器.
- 为了评估制造的超级电容器的电化学性能,机械强度和温度稳定性.
主要方法:
- 大尺寸的Ti3C2Tx纳米片 (L-Ti3C2Tx) 通过沉积,蚀刻和分层的制造.
- 使用超声波方法制备Ti3C2Tx QDs.
- 在Q3M7纤维电极的湿.
- 使用Q3M7电极和分层蒙莫里隆石 (F-MMT) /聚乙醇 (PVA) 二甲基硫氧化物 (DMSO) 柔性水凝 (DHGE) 的全固态超级电容器组装.
主要成果:
- Q3M7光纤电极的特定电容为1560 F cm-3和机械强度为130 MPa.
- 组装的超级电容器在0.5 A cm-3.时显示了413 F cm-3的体积特异电容.
- 该设备在10,000个循环后保持了97%的电容,并在-40°C至60°C之间有效运行,能量密度为36.7 mWh cm-3.
- 在广泛的温度范围内观察到出色的灵活性和电容保持.
结论:
- 开发的Ti3C2Tx QD/L-Ti3C2Tx光纤电极策略对于创建高性能,灵活的超级电容器是有效的.
- 全固态纤维超级电容器在广泛的温度范围内表现出优异的电化学性能和机械稳定性.
- 这项工作为设计用于苛刻应用的先进能量存储设备提供了可行的途径.
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